ath6kl: refactor wmi scan command

ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX was checked in cfg80211.c which is
a bit awkward when adding more callsites to the scan functions. Refactor
the code to wmi.c so that it's transparent to the callers.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath6kl/cfg80211.c

@@ -1031,14 +1031,6 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy,
 
 	vif->scan_req = request;
 
-	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
-		     ar->fw_capabilities)) {
-		/*
-		 * If capable of doing P2P mgmt operations using
-		 * station interface, send additional information like
-		 * supported rates to advertise and xmit rates for
-		 * probe requests
-		 */
 	ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
 				       WMI_LONG_SCAN, force_fg_scan,
 				       false, 0,
@@ -1046,15 +1038,8 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy,
 				       n_channels, channels,
 				       request->no_cck,
 				       request->rates);
-	} else {
-		ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx,
-						WMI_LONG_SCAN, force_fg_scan,
-						false, 0,
-						ATH6KL_FG_SCAN_INTERVAL,
-						n_channels, channels);
-	}
 	if (ret) {
-		ath6kl_err("wmi_startscan_cmd failed\n");
+		ath6kl_err("failed to start scan: %d\n", ret);
 		vif->scan_req = NULL;
 	}
 

drivers/net/wireless/ath/ath6kl/wmi.c

@@ -1899,10 +1899,11 @@ int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
  * mgmt operations using station interface.
  */
-int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
+static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
 				    enum wmi_scan_type scan_type,
 				    u32 force_fgscan, u32 is_legacy,
-			     u32 home_dwell_time, u32 force_scan_interval,
+				    u32 home_dwell_time,
+				    u32 force_scan_interval,
 				    s8 num_chan, u16 *ch_list)
 {
 	struct sk_buff *skb;
@@ -1942,6 +1943,11 @@ int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
 	return ret;
 }
 
+/*
+ * beginscan supports (compared to old startscan) P2P mgmt operations using
+ * station interface, send additional information like supported rates to
+ * advertise and xmit rates for probe requests
+ */
 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
 			     enum wmi_scan_type scan_type,
 			     u32 force_fgscan, u32 is_legacy,
@@ -1957,6 +1963,15 @@ int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
 	int num_rates;
 	u32 ratemask;
 
+	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
+		      ar->fw_capabilities)) {
+		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
+						scan_type, force_fgscan,
+						is_legacy, home_dwell_time,
+						force_scan_interval,
+						num_chan, ch_list);
+	}
+
 	size = sizeof(struct wmi_begin_scan_cmd);
 
 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))

drivers/net/wireless/ath/ath6kl/wmi.h

@@ -2547,11 +2547,6 @@ int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
 			     u16 channel);
 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx);
-int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
-			     enum wmi_scan_type scan_type,
-			     u32 force_fgscan, u32 is_legacy,
-			     u32 home_dwell_time, u32 force_scan_interval,
-			     s8 num_chan, u16 *ch_list);
 
 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
 			     enum wmi_scan_type scan_type,